garbageness
inutility
as much use as a chocolate fireguard
good for nothing
good-for-nothing
insensible
frustraneous
nutil
useless as tits on a boar hog
ineffectual
pointlessly
fruitless
no good
inutilitarian
jabberwocky
inane
uselessness
not worth a whistle
impertinent
blivit
uselessly
futility
for the birds
waste
piffle
dullery
fiddle-faddle
balderdash
waste of time
unuseful
sorriness
paltriness
worthlessly
stultification
deadening
impairment
constipation
useless
footle
futilely
bêtise
whateverness
pseudoproposition
blunt-witted
senselessly
loggerheaded
oxygen thief
folderol
inefficaciously
mullet-headed
craziness
not worth a cress
foolery
indulgence
flizz
lunacy
folly
drossy
tomfoolery
vain
ineffectively
shtus
feckless
pococurantism
disutility
foolishment
nonsensate
effectlessness
tenuity
insignificancy
bubble-brained
meaninglessly
that and a nickel will buy you a cup of coffee
rest
unavailing
vacuity
unspeakability
voidability
idle
unproductivity
desipience
dunderheadedness
frou-frou
dead donkey
laoya
draffish
boobery
dunderheadism
numskullery
unseasonability
unadvisedness
brain damage
thickheadedness
stockishness
goldbrick
good-for-naught